<template>
  <div class="userSelect-container">
    <div class="userSelect-input" @click="openDialog">
      <el-input
        v-if="show"
        :placeholder="placeholder"
        v-model="innerValue"
        readonly
        :disabled="disabled"
      >
        <i
          slot="suffix"
          class="el-input__icon el-icon-circle-close"
          @click.stop="clear"
        ></i>
        <i slot="suffix" class="el-input__icon el-icon-arrow-down"></i>
      </el-input>
    </div>
    <el-dialog
      title="选择用户"
      :close-on-click-modal="false"
      :visible.sync="visible"
      class="JADP-dialog JADP-dialog_center transfer-dialog"
      lock-scroll
      append-to-body
      width="800px"
      :modal-append-to-body="false"
    >
      <div
        class="transfer__body"
        :element-loading-text="$t('common.loadingText')"
      >
        <div class="transfer-pane">
          <div class="transfer-pane__tools">
            <el-input
              placeholder="输入关键词进行搜索"
              v-model="keyword"
              @keyup.enter.native="getList"
            >
              <el-button
                slot="append"
                icon="el-icon-search"
                @click="getList"
              ></el-button>
            </el-input>
          </div>
          <div class="transfer-pane__body">
            <el-tree
              :data="treeData"
              :props="props"
              highlight-current
              :expand-on-click-node="false"
              check-on-click-node
              @node-click="handleNodeClick"
              class="JADP-common-el-tree"
              node-key="id"
              v-loading="loading"
              lazy
              :load="loadNode"
            >
              <span class="custom-tree-node" slot-scope="{ node, data }">
                <i :class="data.icon"></i>
                <span class="text">{{ node.label }}</span>
              </span>
            </el-tree>
          </div>
        </div>
        <div class="transfer-pane">
          <div class="transfer-pane__tools">
            <span>已选</span>
            <el-button @click="removeAll" type="text">清空列表</el-button>
          </div>
          <div class="transfer-pane__body shadow right-pane">
            <template>
              <div
                v-for="(item, index) in selectedData"
                :key="index"
                class="selected-item"
              >
                <span>{{ item.fullName }}</span>
                <i class="el-icon-delete" @click="removeData(index)"></i>
              </div>
            </template>
          </div>
        </div>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="visible = false">{{
          $t("common.cancelButton")
        }}</el-button>
        <el-button type="primary" @click="confirm">{{
          $t("common.confirmButton")
        }}</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import { getImUserSelector, getUserInfoList } from "@/api/permission/user";
export default {
  name: "userSelect",
  props: {
    show: {
      type: Boolean,
      default: true,
    },
    value: {
      default: "",
    },
    interfaceId: {
      type: String,
      default: "",
    },
    placeholder: {
      type: String,
      default: "请选择",
    },
    disabled: {
      type: Boolean,
      default: false,
    },
    multiple: {
      type: Boolean,
      default: false,
    },
    clearable: {
      type: Boolean,
      default: true,
    },
  },
  data() {
    return {
      visible: false,
      keyword: "",
      nodeId: "",
      innerValue: "",
      loading: false,
      props: {
        children: "children",
        label: "fullName",
        isLeaf: "isLeaf",
      },
      treeData: [],
      selectedData: [],
    };
  },
  watch: {
    value(val) {
      this.setDefault();
    },
  },
  created() {
    this.setDefault();
  },
  methods: {
    clear() {
      if (this.disabled) return;
      this.innerValue = "";
      this.selectedData = [];
      this.$emit("input", "");
      this.$emit("change", "", "");
    },
    openDialog() {
      if (this.disabled) return;
      this.visible = true;
      this.keyword = "";
      this.nodeId = "0";
      this.getList();
    },
    confirm() {
      let txt = "",
        ids = "";
      for (let i = 0; i < this.selectedData.length; i++) {
        txt += (i ? "," : "") + this.selectedData[i].fullName;
        ids += (i ? "," : "") + this.selectedData[i].id;
      }
      this.innerValue = txt;
      this.$emit("input", ids);
      this.$emit("change", ids, this.selectedData);
      this.visible = false;
    },
    setDefault() {
      this.selectedData = [];
      if (!this.value) return (this.innerValue = "");
      const arr = this.value.split(",");
      getUserInfoList(arr).then((res) => {
        const list = res.data.list;
        this.selectedData = list;
        let txt = "";
        for (let i = 0; i < list.length; i++) {
          txt += (i ? "," : "") + list[i].fullName;
        }
        this.innerValue = txt;
      });
    },
    getList() {
      this.loading = true;
      if (this.keyword) this.nodeId = "0";
      getImUserSelector(this.nodeId, this.keyword).then((res) => {
        this.treeData = res.data.list;
        this.loading = false;
      });
    },
    loadNode(node, resolve) {
      if (node.level === 0) {
        this.nodeId = "0";
        return resolve(this.treeData);
      }
      this.nodeId = node.data.id;
      getImUserSelector(this.nodeId).then((res) => {
        resolve(res.data.list);
      });
    },
    handleNodeClick(data) {
      if (data.type !== "user") return;
      const boo = this.selectedData.some((o) => o.id === data.id);
      if (boo) return;
      const item = {
        id: data.id,
        fullName: data.fullName,
      };
      this.multiple
        ? this.selectedData.push(item)
        : (this.selectedData = [item]);
    },
    removeAll() {
      this.selectedData = [];
    },
    removeData(index) {
      this.selectedData.splice(index, 1);
    },
  },
};
</script>
<style lang="scss" scoped>
.userSelect-container {
  width: 100%;
  .userSelect-input {
    width: 100%;
    cursor: pointer;
    .is-disabled {
      &:hover {
        .el-icon-circle-close {
          display: none;
        }
        .el-icon-arrow-down {
          display: inline-block;
        }
      }
      >>> input {
        cursor: not-allowed;
      }
    }
    >>> input {
      cursor: pointer;
    }
    .el-icon-circle-close {
      display: none;
    }
    &:hover {
      .el-icon-circle-close {
        display: block;
      }
      .el-icon-arrow-down {
        display: none;
      }
    }
  }
}
</style>